Air Powered Rotary Joints

Corrosion resistant pneumatically powered rotary joints are drive and sealing elements for water blasting tools. The pneumatic motor powered rotary joints in the illustrations below are just a few of those in our range.


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Electrical Rotary Joints

Electrically powered rotary joints in corrosion resistant design perform as drive and sealing elements for water blasting tools. The illustrations below show some of our many electric powered rotary joints.


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Oil Powered Rotary Joints

Oil powered, corrosion resistant rotary joints serve as drive and sealing elements for water blasting tools. Some of our oil hydraulic rotary joints are illustrated below.


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Splitter Nozzles

Installed at pressure discharge outlets, splitter nozzles divert part of the pump flow and reduce it to ambient pressure. The volume of medium diverted can be selected by adjusting the size of the diverting passage.


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Pressure Maintenance Valves

Pressure maintaining valves relieve to pressure in the line between pump and tool but maintain a pre-selected residual pressure (closing pressure) so that the build up to operating pressure is fast the next time the tool is actuated.


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Pressure Regulating Valves

Hammelmann’s pressure regulating valves pneumatically adjust the pump operating pressure with ultimate smoothness.  These valves can also be used as ON/OFF valves or bypass valves.


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Tank Cleaning Devices

Hammelmann custom builds cleaning devices for various tank and vessel designs.  


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3D Pipe Cleaners

3D pipe cleaners are basically tank cleaning units mounted in sledge type guides for pipe cleaning. They are used for removing particularly hard scale deposits. Operating on two axes with a kick plate they automatically move through the pipe as the scale is blasted loose. Alternatively, where access is available they can be pulled through […]


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Trolley for Rotorjets / Centralizers

The trolley enables rotary nozzles to be deployed absolutely centrally in a pipe. The scissor like action of the trolley allows pipes and sewers up to 1.5 m diameter to be intensively high pressure cleaned via selected length nozzle arm extensions.  


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Rotor Jet

These rotating heads are attached directly to a high pressure hose and used to clean various pipes, sewers and smoke stacks.


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